Alcohol, High-Purity Solvents

Polyethylene Glycol (PEG)

Polyethylene Glycol (PEG) 25322-68-3 for Diverse Industrial Applications

This high-purity Polyethylene Glycol (PEG), with CAS 25322-68-3, is a 100% concentrated, versatile raw material designed for extensive industrial use across pharmaceutical, cosmetic, food, beverage, and textile sectors. Presenting as a clear, colorless, viscous liquid with a faint, characteristic odor, it serves effectively as an excellent solvent, humectant, and lubricant. Key characteristics include its non-toxic, non-irritating nature, good chemical and thermal stability, low volatility, and ready biodegradability. Its solubility in water further broadens its applicability, making it an indispensable component for various formulations.

Attributes

Key Features and Benefits

Offers broad compatibility, being water-soluble and miscible with many organic solvents.
Functions effectively as a lubricant, reducing friction in diverse systems.
Acts as a reliable humectant, aiding in moisture retention and preventing drying.
Ensures safety and low irritation, suitable for sensitive applications like cosmetics.
Provides stable performance due to low volatility and good thermal stability.
Is an environmentally responsible choice, being readily biodegradable.
Serves multiple roles including thickener, binder, plasticizer, and dispersing agent.
Applicable across numerous industries, from pharmaceuticals to textiles.

Specifications

Technical Highlights

Appearance (25°C): Colorless viscous liquid or white solid
Odour: Mild, characteristic
pH (5% aq. solution): 4.5 – 7.5
Specific Gravity (25°C): 1.12 – 1.13
Refractive Index (25°C): 1.465 – 1.470
Moisture (% w/w): Max 0.5
Sulphated Ash (% w/w): Max 0.1
Hydroxyl Value (PEG 400, mg KOH/g): 260 – 300
Viscosity (25°C) (PEG 400, cP): 70 – 90
Melting Point (PEG 3350, °C): 54 – 58

Download Technical Data Sheet (TDS)

Practical industry uses

Applications

Pharmaceuticals: Acts as a versatile excipient, serving as a solvent, vehicle, and base for various drug formulations, including ointments, tablet coatings, and oral solutions.
Cosmetics & Personal Care: Functions as a humectant, emulsifier, and thickener in creams, lotions, shampoos, and bath products to enhance texture and hydration.
Food Processing: Utilized as a plasticizer, binding, and coating agent, and humectant in food processing and packaging to improve product quality and stability.
Industrial Lubrication: Employed in metalworking fluids, textile processing, and rubber manufacturing as a lubricant, softener, and antistatic agent.
Ceramics & Adhesives: Serves as a plasticizer and binder in ceramics and adhesives, improving workability and material cohesion.
Paints & Coatings: Used as a solvent and flow improver in paint and coating formulations, enhancing application and finish quality.